What this snippet does
ParamSpec allows forwarding arbitrary parameter signatures, crucial for typing decorators correctly.
Expected output
Typing decorators precisely
Why practise typing this
Typing advanced typing code builds muscle memory for the symbols and indentation Python uses most, which prose-based typing tests never cover. DevType measures your words per minute and accuracy on this snippet and tracks the individual characters you mistype, so later lessons can target them.
More Python practice
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